Hewlett Packard HP-80

 Home > Browse Our Collection > Calculators > Electronic Calculators > Hewlett Packard HP-80
 

The HP-80, launched in February 1973, was Hewlett Packard's second handheld calculator after the HP-35. This calculator was designed for business rather than scientific/engineering use, and was the first of its kind. Unlike the "equation-solver" scientific calculator, the HP-80 was designed to be an "answer machine" and solve problems that didn't require its user to know the formulas needed. As a result, the user could simply enter the parameters of a business problem and get an answer with a single keystroke. Its price on introduction in the US was $395.

The HP-80 had functions for business and finance calculations including:

  • All types of simple and compound interest calculations
  • All types of percentage calculations
  • Statistical applications (mean and standard deviation)
  • All types of present value, future value, and effective rate calculations
  • Sum-of-the-digits amortization (finance charges, depreciation)
  • Add-on interest to effective annual rate conversion
  • Effective yield calculations
  • Mortgage calculations
  • Discounted cash flow analyses
  • Bond price and yield-to-maturity calculations
  • Time interval, future date calculations
  • Linear regression analysis (trend line forecasting) applications
  • Square root calculations

The HP-80 used the same technology as the HP-35, and its size and batteries were the same. The biggest difference is that the HP-80 had seven 256 word ROMs whereas the HP-35 had just three. The HP-80 also replaced the HP-35's x'y with y'x, relabelled the ENTER key SAVE, and was HP's first pocket calculator to have a shift key.

All features of the HP-80 can be seen at http://www.hpmuseum.org/features/80f.htm

Our calculator together with power supply and cables, Quick Guide, and Manual were very kindly donated by David Robertson.

Manufacturer: Hewlett-Packard
Date: 1973

Other Systems Related To Hewlett Packard HP-80:

Item Manufacturer Date
Hewlett-Packard HP-65 Programmable Calculator Hewlett-Packard 1975
Hewlett-Packard HP-9825A Hewlett-Packard 1976
Hewlett-Packard HP-25C Calculator Hewlett-Packard 1976
Hewlett-Packard HP 37-E Hewlett-Packard 1978
Hewlett-Packard HP-41CX Hewlett-Packard 1983

This exhibit has a reference ID of CH17272. Please quote this reference ID in any communication with the Centre for Computing History.

 

Hewlett Packard HP-80


Click on the Image(s) For Detail


Help support the museum by buying from the museum shop

View all items

Founding Sponsors
redgate Google ARM Real VNC Microsoft Research
Heritage Lottery Funded
Heritage Lottery Fund
Accredited Museum